Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-d97ea313-10b6-11f0-8ac6-7c1e52cf5d83

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

57833ad4

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-f8e76d57-4afb-496f-b6a3-84daee232605

Comm: tcp://127.0.0.1:36629	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:38777	Total threads: 1
Dashboard: http://127.0.0.1:38659/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34249
Local directory: /tmp/dask-scratch-space/worker-f02_wit8

Worker: 1

Comm: tcp://127.0.0.1:37943	Total threads: 1
Dashboard: http://127.0.0.1:44249/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:37245
Local directory: /tmp/dask-scratch-space/worker-zl3jbn61

Worker: 2

Comm: tcp://127.0.0.1:33349	Total threads: 1
Dashboard: http://127.0.0.1:34943/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:41495
Local directory: /tmp/dask-scratch-space/worker-izmcdzzd

Worker: 3

Comm: tcp://127.0.0.1:46189	Total threads: 1
Dashboard: http://127.0.0.1:38283/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:44181
Local directory: /tmp/dask-scratch-space/worker-amco0lsp

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)